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Smaller hospitals have a higher risk of operational inefficiency, a study has found.

When deciding on a hospital鈥檚 optimal size, managers need to consider the clinical functions it will offer, and whether 鈥榮urge鈥� capacity was required,聽according to researchers from , and .

Flinders University senior lecturer Dr Shaowen Qin said simulation model findings suggested that smaller hospitals had a higher probability of being overcrowded, which could result in an inability to service newly arrived patients and/or provide an adequate level of treatment. The research suggested that large hospitals had better ability to absorb spikes in arrivals.聽

鈥淭his may mean the provision of additional surge capacity may be required when commissioning smaller facilities,鈥� she said.

The researchers mathematically modelled alternative scenarios including changing the mix of ambulance and walk-in arrivals, and the proportions of patients needing different forms of treatment.

鈥淓ssentially we were exploring a facility planning problem: given a set of conditions, what could be done to help in planning operational services while avoiding excess capacity, the cost of which would need to be met by taxpayers.鈥�

Dr Qin said the study replicated and extended an original study reported last year for Flinders Medical Centre in South Australia, with the latest study using mathematical modelling and computer simulations to model patient flow and waiting times in a large Queensland regional hospital, .

UQ School of Mathematics and Physics鈥� Professor Jerzy Filar said the study aimed聽to help healthcare planners by testing how hospital efficiency relates to size, as hospitals operate under different conditions. It聽used known data, statistical analyses and simulations of various scenarios to generate outcomes in a virtual hospital.

鈥淒ue to their complex organisational structures, it would be unrealistic, costly and risky for hospitals to conduct field experiments to test the effects of any major organisational change.

鈥淢athematical modelling and computer simulations offer an effective and risk-free approach to assess likely impacts of any proposed change.鈥�

Findings of the study, co-authored by Tim Bogomolov, Jerzy Filar, Ruth Luscombe, Yoni Nazarathy, Shaowen Qin, Piotr Swierkowski and Ian Wood, were presented at the in Hobart this week.

Image credit: 漏stock.adobe.com/au/stockshoppe